/*! ******************************************************************************
*
* Pentaho Data Integration
*
* Copyright (C) 2002-2016 by Pentaho : http://www.pentaho.com
*
*******************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
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package org.pentaho.di.trans;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.pentaho.di.core.KettleEnvironment;
import org.pentaho.di.core.RowMetaAndData;
import org.pentaho.di.core.exception.KettleValueException;
import org.pentaho.di.core.plugins.PluginRegistry;
import org.pentaho.di.core.plugins.StepPluginType;
import org.pentaho.di.core.row.RowMeta;
import org.pentaho.di.core.row.RowMetaInterface;
import org.pentaho.di.core.row.ValueMetaInterface;
import org.pentaho.di.core.row.value.ValueMetaInteger;
import org.pentaho.di.trans.step.StepInterface;
import org.pentaho.di.trans.step.StepMeta;
import org.pentaho.di.trans.steps.dummytrans.DummyTransMeta;
import org.pentaho.di.trans.steps.injector.InjectorMeta;
import junit.framework.TestCase;
/**
* Test class for the use of hops, specifically we want to check the copy and distribute mode.
*
* @author Sven Boden
*/
public class HopTest extends TestCase {
public RowMetaInterface createRowMetaInterface() {
RowMetaInterface rm = new RowMeta();
ValueMetaInterface[] valuesMeta = { new ValueMetaInteger( "field1" ), };
for ( int i = 0; i < valuesMeta.length; i++ ) {
rm.addValueMeta( valuesMeta[i] );
}
return rm;
}
public List<RowMetaAndData> createData() {
List<RowMetaAndData> list = new ArrayList<RowMetaAndData>();
RowMetaInterface rm = createRowMetaInterface();
Object[] r1 = new Object[] { new Long( 1L ) };
Object[] r2 = new Object[] { new Long( 2L ) };
Object[] r3 = new Object[] { new Long( 3L ) };
Object[] r4 = new Object[] { new Long( 4L ) };
Object[] r5 = new Object[] { new Long( 5L ) };
Object[] r6 = new Object[] { new Long( 6L ) };
Object[] r7 = new Object[] { new Long( 7L ) };
list.add( new RowMetaAndData( rm, r1 ) );
list.add( new RowMetaAndData( rm, r2 ) );
list.add( new RowMetaAndData( rm, r3 ) );
list.add( new RowMetaAndData( rm, r4 ) );
list.add( new RowMetaAndData( rm, r5 ) );
list.add( new RowMetaAndData( rm, r6 ) );
list.add( new RowMetaAndData( rm, r7 ) );
return list;
}
/**
* Check the 2 lists comparing the rows in order. If they are not the same fail the test.
*/
public void checkRows( List<RowMetaAndData> rows1, List<RowMetaAndData> rows2 ) {
int idx = 1;
if ( rows1.size() != rows2.size() ) {
fail( "Number of rows is not the same: " + rows1.size() + " and " + rows2.size() );
}
Iterator<RowMetaAndData> it1 = rows1.iterator();
Iterator<RowMetaAndData> it2 = rows2.iterator();
while ( it1.hasNext() && it2.hasNext() ) {
RowMetaAndData rm1 = it1.next();
RowMetaAndData rm2 = it2.next();
Object[] r1 = rm1.getData();
Object[] r2 = rm2.getData();
if ( r1.length != r2.length ) {
fail( "row nr " + idx + "is not equal" );
}
int[] fields = new int[r1.length];
for ( int ydx = 0; ydx < r1.length; ydx++ ) {
fields[ydx] = ydx;
}
try {
if ( rm1.getRowMeta().compare( r1, r2, fields ) != 0 ) {
fail( "row nr " + idx + "is not equal" );
}
} catch ( KettleValueException e ) {
fail( "row nr " + idx + "is not equal" );
}
idx++;
}
}
/**
* Test case for hop using copy.
*
* The transformation is as follows: an injector step links to a dummy step, which in turn links to 2 target dummy
* steps.
*
* Both dummy1 and dummy2 should get all rows.
*/
public void testCopyHops() throws Exception {
KettleEnvironment.init();
//
// Create a new transformation...
//
TransMeta transMeta = new TransMeta();
transMeta.setName( "hop test default" );
PluginRegistry registry = PluginRegistry.getInstance();
//
// create an injector step...
//
String injectorStepname = "injector step";
InjectorMeta im = new InjectorMeta();
// Set the information of the injector.
String injectorPid = registry.getPluginId( StepPluginType.class, im );
StepMeta injectorStep = new StepMeta( injectorPid, injectorStepname, im );
transMeta.addStep( injectorStep );
//
// Create a dummy step
//
String dummyStepname = "dummy step";
DummyTransMeta dm = new DummyTransMeta();
String dummyPid = registry.getPluginId( StepPluginType.class, dm );
StepMeta dummyStep = new StepMeta( dummyPid, dummyStepname, dm );
transMeta.addStep( dummyStep );
TransHopMeta hi = new TransHopMeta( injectorStep, dummyStep );
transMeta.addTransHop( hi );
// THIS DETERMINES THE COPY OR DISTRIBUTE BEHAVIOUR
dummyStep.setDistributes( false );
//
// Create a dummy target step 1
//
String dummyStepname1 = "dummy step 1";
DummyTransMeta dm1 = new DummyTransMeta();
String dummyPid1 = registry.getPluginId( StepPluginType.class, dm1 );
StepMeta dummyStep1 = new StepMeta( dummyPid1, dummyStepname1, dm1 );
transMeta.addStep( dummyStep1 );
TransHopMeta hop1 = new TransHopMeta( dummyStep, dummyStep1 );
transMeta.addTransHop( hop1 );
//
// Create a dummy target step 2
//
String dummyStepname2 = "dummy step 2";
DummyTransMeta dm2 = new DummyTransMeta();
String dummyPid2 = registry.getPluginId( StepPluginType.class, dm2 );
StepMeta dummyStep2 = new StepMeta( dummyPid2, dummyStepname2, dm2 );
transMeta.addStep( dummyStep2 );
TransHopMeta hop2 = new TransHopMeta( dummyStep, dummyStep2 );
transMeta.addTransHop( hop2 );
// Now execute the transformation...
Trans trans = new Trans( transMeta );
trans.prepareExecution( null );
StepInterface si1 = trans.getStepInterface( dummyStepname1, 0 );
RowStepCollector rc1 = new RowStepCollector();
si1.addRowListener( rc1 );
StepInterface si2 = trans.getStepInterface( dummyStepname2, 0 );
RowStepCollector rc2 = new RowStepCollector();
si2.addRowListener( rc2 );
RowProducer rp = trans.addRowProducer( injectorStepname, 0 );
trans.startThreads();
// add rows
List<RowMetaAndData> inputList = createData();
for ( RowMetaAndData rm : inputList ) {
rp.putRow( rm.getRowMeta(), rm.getData() );
}
rp.finished();
trans.waitUntilFinished();
List<RowMetaAndData> resultRows = rc1.getRowsWritten();
checkRows( resultRows, inputList );
}
/**
* Test case for hop use.
*
* The transformation is as follows: an injector step links to a dummy step, which in turn links to 2 target dummy
* steps.
*
* The default in the GUI of spoon is copy mode, but here it seems to be distribute.
*/
public void testDefaultConfiguration() throws Exception {
KettleEnvironment.init();
//
// Create a new transformation...
//
TransMeta transMeta = new TransMeta();
transMeta.setName( "hop test default" );
PluginRegistry registry = PluginRegistry.getInstance();
//
// create an injector step...
//
String injectorStepname = "injector step";
InjectorMeta im = new InjectorMeta();
// Set the information of the injector.
String injectorPid = registry.getPluginId( StepPluginType.class, im );
StepMeta injectorStep = new StepMeta( injectorPid, injectorStepname, im );
transMeta.addStep( injectorStep );
//
// Create a dummy step
//
String dummyStepname = "dummy step";
DummyTransMeta dm = new DummyTransMeta();
String dummyPid = registry.getPluginId( StepPluginType.class, dm );
StepMeta dummyStep = new StepMeta( dummyPid, dummyStepname, dm );
transMeta.addStep( dummyStep );
TransHopMeta hi = new TransHopMeta( injectorStep, dummyStep );
transMeta.addTransHop( hi );
//
// Create a dummy target step 1
//
String dummyStepname1 = "dummy step 1";
DummyTransMeta dm1 = new DummyTransMeta();
String dummyPid1 = registry.getPluginId( StepPluginType.class, dm1 );
StepMeta dummyStep1 = new StepMeta( dummyPid1, dummyStepname1, dm1 );
transMeta.addStep( dummyStep1 );
TransHopMeta hop1 = new TransHopMeta( dummyStep, dummyStep1 );
transMeta.addTransHop( hop1 );
//
// Create a dummy target step 2
//
String dummyStepname2 = "dummy step 2";
DummyTransMeta dm2 = new DummyTransMeta();
String dummyPid2 = registry.getPluginId( StepPluginType.class, dm2 );
StepMeta dummyStep2 = new StepMeta( dummyPid2, dummyStepname2, dm2 );
transMeta.addStep( dummyStep2 );
TransHopMeta hop2 = new TransHopMeta( dummyStep, dummyStep2 );
transMeta.addTransHop( hop2 );
// THIS DETERMINES THE COPY OR DISTRIBUTE BEHAVIOUR
dummyStep.setDistributes( true );
// Now execute the transformation...
Trans trans = new Trans( transMeta );
trans.prepareExecution( null );
StepInterface si1 = trans.getStepInterface( dummyStepname1, 0 );
RowStepCollector rc1 = new RowStepCollector();
si1.addRowListener( rc1 );
StepInterface si2 = trans.getStepInterface( dummyStepname2, 0 );
RowStepCollector rc2 = new RowStepCollector();
si2.addRowListener( rc2 );
RowProducer rp = trans.addRowProducer( injectorStepname, 0 );
trans.startThreads();
// add rows
List<RowMetaAndData> compareList1 = new ArrayList<RowMetaAndData>();
List<RowMetaAndData> compareList2 = new ArrayList<RowMetaAndData>();
int counter = 1;
List<RowMetaAndData> inputList = createData();
for ( RowMetaAndData rm : inputList ) {
rp.putRow( rm.getRowMeta(), rm.getData() );
if ( counter % 2 == 0 ) {
compareList2.add( rm );
} else {
compareList1.add( rm );
}
counter++;
}
rp.finished();
trans.waitUntilFinished();
// Dummy1 should get 4 rows: 1 3 5 7
// Dummy2 should get 3 rows: 2 4 6
List<RowMetaAndData> resultRows1 = rc1.getRowsWritten();
checkRows( resultRows1, compareList1 );
List<RowMetaAndData> resultRows2 = rc2.getRowsWritten();
checkRows( resultRows2, compareList2 );
}
/**
* Test case for hop use.
*
* The transformation is as follows: an injector step links to a dummy step, which in turn links to 2 target dummy
* steps.
*
* This testcase uses distribute mode, so each hop in turn should get a row.
*/
public void testDistributeHops() throws Exception {
KettleEnvironment.init();
//
// Create a new transformation...
//
TransMeta transMeta = new TransMeta();
transMeta.setName( "hop test default" );
PluginRegistry registry = PluginRegistry.getInstance();
//
// create an injector step...
//
String injectorStepname = "injector step";
InjectorMeta im = new InjectorMeta();
// Set the information of the injector.
String injectorPid = registry.getPluginId( StepPluginType.class, im );
StepMeta injectorStep = new StepMeta( injectorPid, injectorStepname, im );
transMeta.addStep( injectorStep );
//
// Create a dummy step
//
String dummyStepname = "dummy step";
DummyTransMeta dm = new DummyTransMeta();
String dummyPid = registry.getPluginId( StepPluginType.class, dm );
StepMeta dummyStep = new StepMeta( dummyPid, dummyStepname, dm );
transMeta.addStep( dummyStep );
TransHopMeta hi = new TransHopMeta( injectorStep, dummyStep );
transMeta.addTransHop( hi );
//
// Create a dummy target step 1
//
String dummyStepname1 = "dummy step 1";
DummyTransMeta dm1 = new DummyTransMeta();
String dummyPid1 = registry.getPluginId( StepPluginType.class, dm1 );
StepMeta dummyStep1 = new StepMeta( dummyPid1, dummyStepname1, dm1 );
transMeta.addStep( dummyStep1 );
TransHopMeta hop1 = new TransHopMeta( dummyStep, dummyStep1 );
transMeta.addTransHop( hop1 );
//
// Create a dummy target step 2
//
String dummyStepname2 = "dummy step 2";
DummyTransMeta dm2 = new DummyTransMeta();
String dummyPid2 = registry.getPluginId( StepPluginType.class, dm2 );
StepMeta dummyStep2 = new StepMeta( dummyPid2, dummyStepname2, dm2 );
transMeta.addStep( dummyStep2 );
TransHopMeta hop2 = new TransHopMeta( dummyStep, dummyStep2 );
transMeta.addTransHop( hop2 );
// THIS DETERMINES THE COPY OR DISTRIBUTE BEHAVIOUR
dummyStep.setDistributes( true );
// Now execute the transformation...
Trans trans = new Trans( transMeta );
trans.prepareExecution( null );
StepInterface si1 = trans.getStepInterface( dummyStepname1, 0 );
RowStepCollector rc1 = new RowStepCollector();
si1.addRowListener( rc1 );
StepInterface si2 = trans.getStepInterface( dummyStepname2, 0 );
RowStepCollector rc2 = new RowStepCollector();
si2.addRowListener( rc2 );
RowProducer rp = trans.addRowProducer( injectorStepname, 0 );
trans.startThreads();
// add rows
List<RowMetaAndData> compareList1 = new ArrayList<RowMetaAndData>();
List<RowMetaAndData> compareList2 = new ArrayList<RowMetaAndData>();
int counter = 1;
List<RowMetaAndData> inputList = createData();
for ( RowMetaAndData rm : inputList ) {
rp.putRow( rm.getRowMeta(), rm.getData() );
if ( counter % 2 == 0 ) {
compareList2.add( rm );
} else {
compareList1.add( rm );
}
counter++;
}
rp.finished();
trans.waitUntilFinished();
// Dummy1 should get 4 rows: 1 3 5 7
// Dummy2 should get 3 rows: 2 4 6
List<RowMetaAndData> resultRows1 = rc1.getRowsWritten();
checkRows( resultRows1, compareList1 );
List<RowMetaAndData> resultRows2 = rc2.getRowsWritten();
checkRows( resultRows2, compareList2 );
}
}